Grade 10 Applied objective 28

In this objective you will learn how to write an equation in standard form.

It's like this y-y1=m(x-x1).

At the end it should look like this Ax+By+C=0.

Now the question looks like this: y-7=3/4(x-4).

The answers are [A] y=3/4x-3/4 [B] 3x+4y+16=0, [C] y=3/4x+4, or [D] -3x+4y-16=0.

Now to find the answer you need to first multiply the 3/4 by (x-4).

Now it's y-7=3/4x-3

Now the next step is to multiply ever thing by 4.

Now it will look like this 4y-28=3x-12. Now add 28 to -28, and -12, and -4y from 4y. But the 4 will take out 4 from 3/4.

Now it will look like this 0=3x-4y+16.

So that means that [B] 3x+4y+16=0 is the answer.